Struct chromaprint_rust::DelayedFingerprinter

pub struct DelayedFingerprinter { /* private fields */ }

DelayedFingerprinter allows you to generate Chromaprint fingerprints at a higher resolution than allowed by default.

By design, Chromaprint requires at least 3 seconds of audio to generate a fingerprint. To get more precise fingerprints, we can use multiple Contexts separated by a fixed delay. For example, to obtain a fingerprint for each second of audio, run 3 contexts separated by one second.

DelayedFingerprinter abstracts this logic out into a simple API. Once created, you just need to call feed() and check if any hashes were returned. Each hash will be accompnaied with a timestamp that indicates when the fingerprint was generated.

Implementations

impl DelayedFingerprinter

pub fn new(
    n: usize,
    interval: Duration,
    delay: Duration,
    sample_rate: Option<u32>,
    num_channels: u16,
    algorithm: Option<Algorithm>
) -> Self

pub fn interval(&self) -> Duration

pub fn sample_rate(&self) -> u32

pub fn clock(&self) -> Duration

pub fn feed(
    &mut self,
    samples: &[i16]
) -> Result<Vec<(Fingerprint<Raw>, Duration)>, Error>